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[" If "P(A uu B)=0.8" and "P(A nn B)=0.3...

[" If "P(A uu B)=0.8" and "P(A nn B)=0.3," then "P(bar(A))+P(bar(B))" is equal to "],[[" (a) "0.3," (b) "0.5],[" [Hint."P(A)+P(B)=1-P(A)+1-P(B)=2-[P(A)+P(B)]]]]

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